# AC Voltages

Discussion in 'Homework Help' started by Tim Lafferty, Jan 5, 2012.

1. ### Tim Lafferty Thread Starter New Member

Dec 7, 2011
4
0
If I have a 9Vp-p with 12khz going through a 4.7k resistor how do i figure what the Vp-p value that the resistor drops

Dec 26, 2010
2,147
300

The question you have asked cannot be answered unless you describe the circuit more completely. The best way would be to show a diagram.

If the resistor is connected straight across the 9Vp-p supply and common with no other parts intervening then the answer would be 9Vp-p. If there is more to the circuit, the answer may be different.

It is not possible to say how much voltage a resistor will drop when it is connected to a supply, without also knowing what load it is connected to.

3. ### Tim Lafferty Thread Starter New Member

Dec 7, 2011
4
0
9Vp-p -------4.7kresistor--------1μF capacitor-----1μF cap.------10kΩ
12khz

Then you have a 15Vdc in series with a 3.3kΩ and a 5.6kΩ and that is running between the capacitors.

would like to find out the Vp-p right after the first resistor.